flight Aircraft
N23721
BOEING 737-700
Operated by UNITED AIRLINES INC
- Tail number
- N23721
- Type
- B737
- Mode-S
- A22539
Not currently tracked · last seen Jul 26, 22:15 UTC
- Flights observed
- 449 showing last 50
- Avg flight time
- 2h 25m
- Typical route
- IAH → MTY
- Last seen
- Jul 26, 22:15 UTC
Last known area
Recent flights last 50
| Date | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|
| 2026-07-26 | IAH → SAN | Jul 26, 20:55 UTC | Jul 26, 22:15 UTC | 1h 20m |
| 2026-07-26 | ORD → CLE | Jul 26, 15:10 UTC | Jul 26, 17:45 UTC | 2h 35m |
| 2026-07-26 | SAN → SFO | Jul 26, 00:05 UTC | Jul 26, 13:00 UTC | 12h 56m |
| 2026-07-25 | SFO → DEN | Jul 25, 19:10 UTC | Jul 25, 22:00 UTC | 2h 50m |
| 2026-07-25 | IAH → SFO | Jul 25, 13:40 UTC | Jul 25, 16:25 UTC | 2h 45m |
| 2026-07-24 | MEX → EWR | Jul 24, 22:15 UTC | Jul 25, 01:25 UTC | 3h 10m |
| 2026-07-24 | MSP → ORD | Jul 24, 17:30 UTC | Jul 24, 20:45 UTC | 3h 15m |
| 2026-07-24 | LGA → ORD | Jul 24, 13:50 UTC | Jul 24, 15:00 UTC | 1h 10m |
| 2026-07-24 | ORD → DFW | Jul 24, 03:20 UTC | Jul 24, 04:15 UTC | 55m |
| 2026-07-24 | ORD → DFW | Jul 24, 03:25 UTC | Jul 24, 04:29 UTC | 1h 4m |
| 2026-07-23 | IAH → SFO | Jul 23, 22:15 UTC | Jul 23, 23:07 UTC | 52m |
| 2026-07-23 | IAH → SFO | Jul 23, 22:10 UTC | Jul 23, 23:15 UTC | 1h 5m |
| 2026-07-23 | LGA → ORD | Jul 23, 19:45 UTC | Jul 23, 20:50 UTC | 1h 5m |
| 2026-07-23 | SEA → SFO | Jul 23, 14:20 UTC | Jul 23, 18:25 UTC | 4h 5m |
| 2026-07-22 | BNA → EWR | Jul 22, 22:10 UTC | Jul 23, 02:10 UTC | 4h 0m |
| 2026-07-22 | MTY → IAH | Jul 22, 18:20 UTC | Jul 22, 19:25 UTC | 1h 5m |
| 2026-07-22 | IAH → MTY | Jul 22, 15:28 UTC | Jul 22, 16:15 UTC | 47m |
| 2026-07-22 | IAH → MTY | Jul 22, 15:10 UTC | Jul 22, 16:15 UTC | 1h 5m |
| 2026-07-22 | LAX → LAS | Jul 22, 12:55 UTC | Jul 22, 13:35 UTC | 40m |
| 2026-07-22 | LAX → LAS | Jul 22, 12:59 UTC | Jul 22, 13:31 UTC | 32m |
| 2026-07-21 | - | Jul 21, 23:55 UTC | Jul 22, 00:30 UTC | 35m |
| 2026-07-21 | QRO → IAH | Jul 21, 17:50 UTC | Jul 21, 22:30 UTC | 4h 40m |
| 2026-07-21 | SNA → IAH | Jul 21, 12:40 UTC | Jul 21, 16:05 UTC | 3h 25m |
| 2026-07-20 | MIA → EWR | Jul 20, 23:35 UTC | Jul 21, 02:45 UTC | 3h 10m |
| 2026-07-20 | IAH → SAN | Jul 20, 19:20 UTC | Jul 20, 21:45 UTC | 2h 25m |
| 2026-07-20 | ORD → CLE | Jul 20, 15:10 UTC | Jul 20, 17:45 UTC | 2h 35m |
| 2026-07-20 | BNA → IAH | Jul 20, 11:40 UTC | Jul 20, 13:10 UTC | 1h 30m |
| 2026-07-20 | BNA → IAH | Jul 20, 11:46 UTC | Jul 20, 13:08 UTC | 1h 22m |
| 2026-07-20 | - | Jul 20, 02:15 UTC | Jul 20, 03:50 UTC | 1h 35m |
| 2026-07-19 | QRO → IAH | Jul 19, 19:40 UTC | Jul 20, 00:05 UTC | 4h 25m |
| 2026-07-19 | - | Jul 19, 14:20 UTC | Jul 19, 18:10 UTC | 3h 50m |
| 2026-07-18 | BNA → EWR | Jul 18, 22:05 UTC | Jul 19, 02:00 UTC | 3h 55m |
| 2026-07-18 | MTY → IAH | Jul 18, 18:25 UTC | Jul 18, 19:30 UTC | 1h 5m |
| 2026-07-18 | IAH → MTY | Jul 18, 15:30 UTC | Jul 18, 16:35 UTC | 1h 5m |
| 2026-07-18 | - | Jul 18, 10:20 UTC | Jul 18, 13:50 UTC | 3h 30m |
| 2026-07-17 | - | Jul 17, 21:50 UTC | Jul 18, 01:20 UTC | 3h 30m |
| 2026-07-17 | MTY → IAH | Jul 17, 18:40 UTC | Jul 17, 19:45 UTC | 1h 5m |
| 2026-07-17 | IAH → MTY | Jul 17, 16:10 UTC | Jul 17, 17:20 UTC | 1h 10m |
| 2026-07-17 | IAH → MTY | Jul 17, 16:17 UTC | Jul 17, 17:12 UTC | 55m |
| 2026-07-17 | - | Jul 17, 13:50 UTC | Jul 17, 14:55 UTC | 1h 5m |
| 2026-07-17 | ORD → DFW | Jul 17, 03:39 UTC | Jul 17, 04:39 UTC | 1h 0m |
| 2026-07-16 | - | Jul 16, 22:25 UTC | Jul 17, 01:35 UTC | 3h 10m |
| 2026-07-16 | - | Jul 16, 17:30 UTC | Jul 16, 20:39 UTC | 3h 10m |
| 2026-07-16 | IAH → LGA | Jul 16, 17:21 UTC | Jul 16, 20:38 UTC | 3h 17m |
| 2026-07-16 | - | Jul 16, 12:40 UTC | Jul 16, 15:55 UTC | 3h 15m |
| 2026-07-15 | - | Jul 15, 23:35 UTC | Jul 16, 02:45 UTC | 3h 10m |
| 2026-07-14 | - | Jul 14, 22:05 UTC | Jul 15, 01:35 UTC | 3h 29m |
| 2026-07-14 | - | Jul 14, 17:30 UTC | Jul 14, 20:45 UTC | 3h 15m |
| 2026-07-14 | - | Jul 14, 13:55 UTC | Jul 14, 15:15 UTC | 1h 20m |
| 2026-07-14 | - | Jul 14, 02:15 UTC | Jul 14, 03:30 UTC | 1h 15m |
Specifications
| Registration | N23721 |
| Aircraft type | BOEING 737-700 (B737) |
| Operator | UNITED AIRLINES INC |
| Mode-S code | A22539 · 50422471 (octal) |
Looking for transponder-level data? View the Mode-S A22539 page for country allocation, callsign history, and ADS-B signal details.
N23721 frequently asked
What type of aircraft is N23721?
N23721 is a BOEING 737-700 (ICAO type code B737).
Who operates N23721?
N23721 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N23721?
N23721 broadcasts on Mode-S (ICAO 24-bit) address A22539 (octal 50422471). View the transponder page.
What route does N23721 typically fly?
N23721 most frequently flies between IAH and MTY based on observed flights.
Where is N23721 right now?
N23721 is not currently being tracked; last seen Jul 26, 22:15 UTC.